Television – Image signal processing circuitry specific to television – Special effects
Patent
1995-01-05
1996-11-26
Kostak, Victor R.
Television
Image signal processing circuitry specific to television
Special effects
348 7, 348 10, 348 12, 348 13, 348569, 345189, 345192, H04N 5262, H04N 5272, H04N 5278
Patent
active
055790577
ABSTRACT:
A display system for the on screen display of information for a subscriber terminal of a subscription television system includes a display processor which can display information in the form of a display screen stored in a display memory. The display processor can be preprogrammed by the control processor with a plurality of display attributes including different symbol sets, different color palettes, whether the screen is to be a text screen, graphic screen or a combination of a text and graphics system, and the size and location of each screen display on the display area. The display processor includes a digital processor and an analog processor. The digital processor controls accessing the display data from the memory and converting it into timed digital pixels. The analog processor includes a digital to analog pixel converter which produces analog pixels from the digital pixels in a timed relation to an input video signal. The analog processor includes a multiplexer which substitutes the analog pixels for the pixels of the input video signal when display processor is active.
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M50455-XXXSP TV Screen Character and Pattern Display Controller Data Sheets, by Mitsubishi, dated on or about Oct. 1987.
Bacon Kinney C.
Banker Robert O.
Burleson David B.
Ith Cham
Flynn Nathan J.
Kostak Victor R.
Scientific-Atlanta, Inc.
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